Plug Gauges / Screw Gauges

[Features]· The limit plain gauge is a gauge that has one measuring surface based on the maximum actual hole size and another measuring surface based on the minimum actual hole size.■ Through Side Plug Gauge· This gauge is for inspection of whether the diameter of the hole is larger than the regulated largest object size, and must be able to pass easily through the full length of the hole.■ Blind Plug Gauge· This gauge is for inspection of whether the diameter of the hole is smaller than the regulated smallest object size, and must not enter the hole.

[Features]· A tapered screw gauge used for inspection of screws (R, Rc, Rp) primarily for mechanical connections that require sealing, newly established by JIS after introduction of the ISO gauge standard.· The R and PT product screws are identical in terms of their dimensions, but the gauge systems used are different.· If the pipe or pipe fitting end are within the range of the gauge notch length, it will pass.· The difference from the conventional pipe taper thread gauge PT is as follows.· Wear limit of tapered thread ring gauge: Wear limit has been regulated for the tapered thread ring gauge.· Inspection plug: Wear limit is inspected with the inspection plug for tapered screws (CP).

[Features]· Using a screw gauge to determine pass/fail of parallel screws, this limit type is the most general method.· In order to judge the acceptability of product screws, inspection is conducted using the Go and No Go side gauges, demonstrating high precision.

[Features]· A screw gauge used for inspection of screws (G) primarily for mechanical connections that do not require sealing, newly created by JIS after introduction of the ISO gauge standard.· The difference from the conventional pipe parallel thread gauge PF is as follows.· Classification y/n.· A screw gauge grade for female screws is not available.· Male thread gauges are classified as Grade A or Grade B.· Note that GR is for both Grade A and Grade B.· The distinction between use for inspection and use for manufacturing has been eliminated for both through and blind sides.· Determination of pass/fail for thread ring gauge.

[Features]· Uses the limit system, the most common method for parallel screw gauges, in which the accuracy is guaranteed by managing the limit of the product screws for through/blind.· There are two basic limit types: the ISO classification gauge type and the conventional JIS classification gauge type.· The conventional JIS gauge system distinguished inspection and machining on the gauge no-go side, but the ISO gauge system is simplified, removing this distinction.· Scissors-type gauge for exterior use is the same.

[Features]· The gauge classifications for screw limit gauge are determined with the same grades as the screws to be measured.· This gauge is called a limit thread gauge since it uses the upper limit and lower limit of the predetermined dimension accuracy of the screw part using 2 screws with different dimensions, through and blind, for inspection.· For the usage method, a gauge is considered to have passed the grade inspection when the screw thread limit gauge's go gauge can pass through without difficulty and the no-go gauge cannot be screwed in by more than two rotations.· In addition to mass-producing limit screw gauges according to JIS standards, the manufacturer can also design and manufacture screw gauges to conform with any standard.

[Features]· Using a screw gauge to determine pass/fail of parallel screws, this limit type is the most general method.· In order to judge the acceptability of product screws, inspection is conducted using the Go and No Go side gauges, demonstrating high precision.

[Features]· A screw gauge used for inspection of screws (G) primarily for mechanical connections that do not require sealing, newly created by JIS after introduction of the ISO gauge standard.· The difference from the conventional pipe parallel thread gauge PF is as follows.· Classification y/n.· A screw gauge grade for female screws is not available.· Male thread gauges are classified as Grade A or Grade B.· Note that GR is for both Grade A and Grade B.· The distinction between use for inspection and use for manufacturing has been eliminated for both through and blind sides.· Determination of pass/fail for thread ring gauge.

[Features]· A tapered screw gauge used for inspection of screws (R, Rc, Rp) primarily for mechanical connections that require sealing, newly established by JIS after introduction of the ISO gauge standard.· The R and PT product screws are identical in terms of their dimensions, but the gauge systems used are different.· If the pipe or pipe fitting end are within the range of the gauge notch length, it will pass.· The difference from the conventional pipe taper thread gauge PT is as follows.· Wear limit of tapered thread ring gauge: Wear limit has been regulated for the tapered thread ring gauge.· Inspection plug: Wear limit is inspected with the inspection plug for tapered screws (CP).

An extremely useful screw gauge for those times when it is not possible to measure using a conventional screw pin gauge.[Features]· Thread changes to 1/15 taper thread in the middle so that the unit can be fixed on a workpiece with a taper screw.· Can be used for measurements where chamfering of the screw hole is not possible, or where the screw hole is angled against workpiece surface, etc.· Also ideal for deburring.[Applications]· Used for measuring between screw hole centers or for positioning screw holes.

Essential product for checking thread precision. Screw gauge enabling easy checking of screw accuracy on the Go and No Go sides.[Features]· Inspects the upper limit and lower limit of the predetermined dimension accuracy of the screw part.· Machining (GPWP) and ISO system specifications can also be manufactured.[Applications]· Used for inspecting screws.· The gauge classifications for screw limit gauge are determined with the same grades as the screws to be measured.· If the gauge GO side is passed through comfortably and the NO GO side does not screw in two turns or more, then the screw is judged to have passed.

[Features]· The gauge classifications for screw limit gauge are determined with the same grades as the screws to be measured.· This gauge is called a limit thread gauge since it uses the upper limit and lower limit of the predetermined dimension accuracy of the screw part using 2 screws with different dimensions, through and blind, for inspection.· For the usage method, a gauge is considered to have passed the grade inspection when the screw thread limit gauge's go gauge can pass through without difficulty and the no-go gauge cannot be screwed in by more than two rotations.· In addition to mass-producing limit screw gauges according to JIS standards, the manufacturer can also design and manufacture screw gauges to conform with any standard.

[Features]· American standard (ANSI) pipe taper thread gauge used for inspecting pipe taper threads (NPT) for general components requiring sealing.· These gauges come with various notching; however, the one most commonly used has notches in 3 locations: minimum position, reference position and maximum position.· When a gauge is screwed in by hand to a pipe taper screw, if the pipe end is within the range of the maximum limit position and minimum limit position notch, it will pass.· For NPT, the height of the ridge cutout for the screw outer and inner diameters are regulated; using an NPT plane taper gauge for this inspection is recommended.· Dimensional inspection of outer or inner diameter can be easily performed by aligning the three notches on the taper thread gauge and the six notches on the plain taper gauge.

[Features]· A tapered screw gauge used for inspection of screws (R, Rc, Rp) primarily for mechanical connections that require sealing, newly established by JIS after introduction of the ISO gauge standard.· The R and PT product screws are identical in terms of their dimensions, but the gauge systems used are different.· If the pipe or pipe fitting end are within the range of the gauge notch length, it will pass.· The difference from the conventional pipe taper thread gauge PT is as follows.· Wear limit of tapered thread ring gauge: Wear limit has been regulated for the tapered thread ring gauge.· Inspection plug: Wear limit is inspected with the inspection plug for tapered screws (CP).